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How Can a Letter Stand for a Changing or Unknown Number?

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Expressions using Letter-Numbers · Letters representing numbers · 3:04

You'll learn: A letter can stand for a quantity that changes or for one we don't know yet.

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How Can a Letter Stand for a Changing or Unknown Number?

3:04

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How Can a Letter Stand for a Changing or Unknown Number?

You'll learn: A letter can stand for a quantity that changes or for one we don't know yet.

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